What type of relationship exists between Tables I and II?
One to one
Three to four
Four to three
One to many
Correct answer is D
No explanation has been provided for this answer.
The diagram illustrates the relationship between two tables in a database.
The student ID in Tables II is referred to as
Primary key
Foreign key
Normal key
Composite key
Correct answer is A
No explanation has been provided for this answer.
Which of these measures would not secure data in database?
Encryption
Data integration
Personal Identification Number
Username and passwords
Correct answer is B
No explanation has been provided for this answer.
The type of file organisation in a DVD-ROM is
Direct access
Sequential
Serial
Hierarchical
Correct answer is A
No explanation has been provided for this answer.
The following are desturctive software except
Drivers
Worms
Trojan horses
Logic bomb
Correct answer is A
No explanation has been provided for this answer.
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